Portable rock-asphalt and concrete mixing machine



1,609,404 H. M.V.DRUCE PORTABLE ROCK ASPHALT AND CONCRETE MIXING MACHINE Filed May 5, 1924 v 2 Sheets-Sheet 1 Dec. 7 1926; 1,609,404 H. M. DRUCE v PORTABLE ROCK fl-SPI'IAL'I AND CONCRETE MIXING MACHINE Filed May 5, 1924 I 2 Sheets-She et 2 same-into the mixing with the receptacle and one of Passed Dee. 7 1926.

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- I HAROLD M. DEUCE, OF SAN ANTONIO, TEXAS. I

PORTABLE ROCK-ASPHALT AND CONCRETE MIXING MACHINE.

Application filed May 3,

This invention relates to new.

and useful improvements in rock asphalt and concrete mixing machines and has for its principal object to provide a portable device wherein means is provided for weighing and measuring the material prior hopper, ing also associated to discharging the a spreader bewith the mixing hopper. A further object of the invention is to' provide a portable mixing machine of the above mentioned character, wherein a rece tacle adapted to contain the asphalt or t e like is mounted on the forward end of the machine, conveying means being associated for delivering the material from tacl'e to the hopper,

the hoppers the recepand an additional hopper with which is associated a scale for regulating the amount of material a from the first mentioned hopper mentioned hopper ing of the material into a mixing A still further'obj delivered to the last previous to the dischargreceptacle.

ect of the invention is to provide a portable mixing machine of the above mentioned character, tain of the parts of the machine,

' to be actuated simultaneously by power plant mounted on the machine.

A still further object of the invention is to provide a portable mixing machine of the above mentioned character, which is simple in, construction, inexpensive,

wherein cerare adapted a suitable strong and du-' rable and furthermore adapted for the purcourse of'the following poses for whichit is designated.

Other objects and advantages of this invention will become apparent during the In the accompanying numerals designate same:

Figure .proved awa l 'Figur end of the machine a showing description.

, drawings forming a part of this specification and in which like in,

like parts throughout the 1 is aside elevation of my immlxmg-machine with parts broken e 2 is afragmentiaxy sectional view of the receptacle mounted. on the forward. the convey: 2

ing means associatedherewith, and

' gu proximately on 3 is a sectional view taken apline 3 -3 of Figure 1. the drawings wherein for the purpose ofillu trationj shown the preferred ems .manner clearly- 1924. Serial No. 710,902.

bodiment of my invention, the numeral 1 designates generally a. frame which is provided with the .front and rear traction wheels 2 and 3 respectively, whereby the device is rendered portable. Mounted on the forward end of the frame 1 is the usual, ower plant 4 and as the same is of the well own construction, a further detailed description' of the same is not thought necessary, Thedrive shaft of the power plant 4 is illustrated at 5 in the drawings and the purpose thereof .will hereinafter be more fully described.

. Pivotally supported on the forward end of'the frame 1 and extending outwardly therefrom is the receptacle 6 which has its top open and is provided with a tractionwheel? on the forward end thereof whereby the same is held off of the ground and to further facilitate in the transportation of.

the machine. A pivotal connection of the receptacle to the forward end of the frame is shown at 8 in the drawings. I The repeptacle 6 is adapted to receive and contain a truck load of the material to be deposited on'the groundand may consist of either crushed,

rock asphalt on the usual mixture of sand and cement in the manner well known in the art.- I

Extending upwardly from the sides of the frame 1 adjacent the forward end thereshown at 9. Adapted to be supported by .of are the vertical standards such as are Y the upper ends-of the standards isthe hopper 10'which' s provided with an inclined ottom and is larger at its rear end in the gure 1 ofthe vertically; case the casing on suitable shafts-16 and 17 re spectively,

ranged thereon the buckets 18 which a're'ar-- relation'andas the same The endless conveyor 13.has arranged in spaced described; Ex-

rear portion of belt 13 and the same I I are well known in the art,a further detailed description of the buckets is not thought necessary. The endless conveyor 13 is adaptedto be actuated by means of the sprocketchain 19 which extends over a suita le sprocket wheel 20 mounted on the outer end of the drive shaft of the power plant 4 and a sprocket wheel 21 mounted on the outer end of the shaft 17 supported in the upper portion of the casing 11 in .the manner clearly illustrated inFigure l of the drawings. 4

This construction affords a means whereby the material contained in the receptacle 6 may be conveyed by means of the bucket 18 upwardly in the casing 11 and discharged onto the trough 12 by gravity, the material is emptied into the storage hopper 10.

Mounted on the rear end of the frame 1 is a platform scale 22 which is of any well known construction and adapted to be supported thereon by means of the supporting member 23 is the hopper 24 which is also is shown at 28 may be provided with an inclined bottom and is furthermore so supported on the frame as to have its forward smaller end disposed directly below the rear or discharge end of the storage hopper '10. The discharge end of the storage hopper 10 is provided with a closure 25, the same being pivoted at 26 and a lever 27 is associated therewith whereby the closure may be actuated to open or close the discharge end ofthe storage hopper in the manner to be presently described. The provision of the swinging closure 25 is to provide a means for regulating the feeding of the material within the storage hopper 10 to the hopper 24. A locking means such as the closure 25 in locked position with respect to the discharge openmg of the storage hopper so as to prevent the accidental opening of the same by the material contained within the storage hopper. The rear end of the second hopper 24 is also provided .with a swinging closure 29 similar to the closure 25 and the same is pivoted at 30. A

handle 31 is associated therewith for actuating the closure and a locking means 32 is also provided for the same purposes as the locking means 28 heretofore described. The

purpose of the rovision of the second hopper is to. rovi e a means for weighing t e material elivered thereto previous to the discharging of the material into the mixing receptacle 33 which is mounted on the rear end of the frame in the manner clearly shown in Figure 1 of the drawings.

- The mixing receptacle 33 may be of an conventional construction and I do not wis 1 to limit myself to the particular kind of mixer to b used for-the purposesof carrya ing out theob'jectsof the present invention.

/ The mixer u .01 mo th 11.1 comm nic ti n wlth .0 she- 33 normally has its open ortion provided for holding charge end of the second hopper 24 and the agitating means contained within the mixer is adapted to be actuated 'by means of the sprocket chain 34 whichiextends over the sprocket wheel 35 mounted on the drive shaft 5 and a similar sprocket wheel 36 car 'ried by mixer.

Cooperating with the mixer is a fluid feeding means and the same comprises a supply tank 37 which is supported between the standards 9 and extending rearwardly from the supply tank is the pipe 38. The pipe 38 communicates with a .measuring vessel 39 the outer end of the agitator shaft I which extends longitudinally through the supported in any suitable manner such as is shown at 40 on the rear end of the frame above the mouth of the mixer 33 and the oil in the tank 37 which is heated by any suit-' able heating means such as is shown at 41 is fed through the pipe 38 into the measuring vessel 39. A valve such as is shown at 42 is provided in the pipe 38 for re ulating the supply of the oil from the ta to the measuring vessel 39; The measuring vessel 39 is provided with an outlet pipe 43 which extends downwardly into communication with the mouth of the mixer 33 and. a suitable valve 44 is arranged therein for con trolling the delivery of the oil from the is journaled in a suitable bracket 46 extendling transversely across the side beams of the frame in the manner clearly shown in -Fig ure3 of the drawings and on the upper end of the shaft- Whichcarries the. spreader 45 is a beveled gear -47 which meshes with a gear 48 the latter' being similar beveled end of a longitudinally exmounted on one tending shaft 49 able brackets 50 supported on the aforementioned bracket46.- The opposite end of the shaft 49 carries'thereon a beveled gear 51 which meshes with a beveled gear 52 arranged on the lower end of the verticallyextending shaft 53 and the upper end of the shaft '53 carries a beveled gear 54 which meshes with the beveled gear 55, the latter .measuring vessel 39 into the mixer 33. The

luu

which is journaled in suit- 4 is mounted on the agitatorshaft 56 which extends through the'mixing receptacle 33 and is adapted to be driven by the s rocket chain 34 heretofore more fully descri d.

The operation of my portable mixing 'mathe storage hopper wei ht or amount of er 24 has been maintained, the clowhic aeoa eoe chine may be briefly stated as follows: With veyor 13 will cause the buckets 18 carried thereb to elevate the material from the receptac e upwardly in the casing 11 and dischar e the same onto the trough 12 from the same is emptied into'the storage hopper 10. The closure 25 is then opened and releasing the locking means 28 and actuating the handle 27 and the material from is then delivered into the hopper 24 by gravity. Afterthepro er the material wit 'u tht opp sure is closed preventing the further supthe endless conveyor and ag It is also to be understood that the storage a mixed in the mixer,

ply of the material from the storage hopper to the second hopper 24 and the closure 29 is then opened so as. to cause the contents in the second hopper to be discharged into the mouth of the mixer '33. A quantity of liquidis delivered to-the measuring receptacle 39 and to the desired proportion and thereupon the valve 42 isclosed and the valve 44 is open whereby the liquid in the measuring receptacle or vessel will be discharged into the material has'been properly thesprea er 45 will cause the'same to be spread on the roadlover Y which the machineitravels.

The-machine is adapted to be transported by the usual means associated with the power plantand it is to be further understood that when the clutch is in gear, whereby the machine may move along the road the same will not discontinue the operation of itator shaft.

hopper is so arranged on the frame as not to interfere with the operation ofthe steer ing mechanism for the machine. 7

It will thus be seen from the foregoing description, that a' portable'as halt and concrete mixing machine has heen provided which is simple in construction, strong and durable and the parts further so arranged as to enable the same to be readily accessible whenever necessary; Furthermore the 'provision of a weighing and measuring means for the materialwill assure thespreading of a proper mixture on the road. 1

While I have shown the preferred embodiment of my invention, 7 stood that various changes in the size, shape and arrangement of parts may be resorted to without departing from the spirit of the invlention and the scope. of the appended c aims.

Having thus describedmy invention, what I claim is 1. In a portable rock asphalt and concrete mixing machine, a vzheeled frame, a receptacle on the forward nd thereof, a storthe mixing receptacle. After" a 'tated and .end of the second hopper,

it is to be under- 'rearwardly sloping bottom,

and adapted to hold a redetermined quantity of material, a liquid feeding means on the frame to the rear of, and on approximately the same level with the second hopper, a mixing receptacle on the rear end of said frame to the rear of and below the second hopper and below said liquid feeding means, a power plant on the frame operable to propel the machine, and means connected with the power plant for operatingsaid conveyor and said mixing means whereby material from the receptacle may be delivered to the storage hopper so that said material may flow by gravity from the storage hopper to the second hopper, and thence to the mixing receptacle.

2. In combination, a wheel frame, a receptacle on the forward end thereof, a storage'hopper supported on theframe at a hi herlevel than the receptacle and having a ownwardly and rearwardly sloping bottom, a conveyor between said receptacle and said storage hopper, a valve controlled outlet means at the rear end of the storage hopper, a second hopper to .the'rear of, at a lower level than, and communicating with the storage hopper and rovided with a downwardly and re arward y sloping bottom, weighing means asso ciated with thesecond hopper, a valve controlled outlet means associated with the rear a liquid feeding means on the frame to the-rear of and on approximately the same level with the sec-- ond hopper, a mixing receptacle-on the rear end ofsaidframe to the rear of and below the second hopper and below said liquid feeding means, a power plant on the frame operable to ropel the machine and means connected with the'power plant for operating said conveyor and said mixing means.

3. In combination, a wheeled frame, a receptacle on the forward end thereof,- a storage hopper supported on the; frame at a higher level than the receptacle and having er supported on the frame ata the storage hopper supported on the frame I a downwardly and rearwardly; sloping bot- I tom, a conveyor between said receptacle and said storage hopper, a valve controlled outlet means at the rear end of the storage hopper, a second hopper frame to the rear of, at a lower level than, and communicating with the storage hopper, and provided with a downwardly and weighing means associated with the second hopper, a valve controlled outlet means associated with the rear end of the second hopper, a liquid feeding means on the frame to the rear of ard supported on the "on up roximately the same level with the below the mixing receptacle, and secon hopper, a mixing receptacle on the connected with the power plant for operatrear end of said frame to the rear of and ing saidconveyor, said mixing means, ,and 10 below the second hopper and below said said spreader mechanism. I 6 liquid feeding means, a power plant on the In testimony whereofi I aflix my signaframe opera le to propel the machine, avtux-e. 4

spreading mechanism disposed immediately HAROLD M. DRUCE. 

